Plane.



0. 0. SKRUKRUD.

PLANE.

APPLIOATION FILED Hung, 1910.

Patented Feb. 17, 1914.

OLA]? O. SKRUKBUD, 0F LANESBORO, MINNESOTA.

PLANE.

To all whom it mag concern.-

Be it known that I, OLAF O. SKRUKRUD, a citizen of the United States,residing at Lanesboro, in the county of Fillmore and State of Minnesota,have invented certain new and useful Improvements in Planes, of whichthe following is a specification.

My invention relates to an improvement in planes, and more particularlyto planes used upon wood planing machines, which planes are mounted upona track for cutting grooves and the like.

The object of this invention is to provide a shoe which is connected tothe plane which will act as a guide during the cutting opera tion andwhich will pass out of the groove as the plane approaches the end of thegroove to be cut, thereby allowing the bit of the plane to come to theend of the groove for making the proper cut.

The invention consists of certain novel features of construction andcombinations of parts which will be hereinafter described and pointedout in the claim.

In the accompanying drawings Figure 1. is a view in side elevation of amachine upon which the plane may be applied, and showing the planepractically in section to disclose the shoe. Fig. 2 is a detail view ofthe shoe; and Fig. 3 is detail of the board operated upon.

A represents the bed of the machine and B is the track upon which aremounted the hangers 1, 1, to which the plane 8 is connected. A slot 1 isformed in the plane, in which the bit or blade is received, and which isheld in position by a bolt A guard 6 is supported at the opposite sideof the slot by a bolt 7. A groove or slot 8 is formed at the forward endof the plane in which is re ceived a shoe 9. The shoe 9 is provided witha vertical slot 10. A pin 11 passes through the plane and through thevertical slot 10 of the shoe, whereby the shoe is supported within theslot 8 and capable of vertical movement therein. A spring 12 is receivedwithin the slot 8 which bears against the shoe for holding the samedown, so that the shoe would extend below the bottom of the plane. Theforward end of the shoe is Specification of Letters Patent.

Application filed February 19, 1910.

Patented Feb. 1'3, 1191a. Serial No. 544,805.

curved upwardly, as at let. As the plane is traveling along the trackand the groove is being formed in the board, and after the groove hasbeen started, the shoe will travel in the groove, causing the bit of theplane to travel along the groove. When a short groove is to be formed,as indicated, for instance, at 17 of the board C in Fig. 3, a hole 17 isformed at the end of the groove. The plane, as it travels along thetrack will pro 0 duce the cutting operation for forming a groove up tothe hole 17. As the shoe strikes the wall of the hole, it will moveupward, passing up onto the board, and allowing the bit to travel alongthe groove and 5 make the cut up to the hole 17. The shoe mounting theboard or plank in this manner will form a certain amount of rigidity forthe plane to prevent lateral movement and insure the proper cutting ofthe groove, and the same is true when the shoe is traveling through thegroove, as the body of the plane will not come in contact with theplane.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is

The combination with a bed, of a track mounted on the bed, a planemounted upon the track adapted to move thereon, said plane having a slotformed in one end there of, a shoe mounted in the slot and projectingbeyond and below the plane, the forwardly projecting end of the shoehaving the under side thereof curved upwardly, said shoe having anelongated vertical. slot therein, a pin passing through the plane andslot of the shoe for holding the shoe in place and allowing the shoe tohave an oscillating movement thereon and move vertically through theplane, and a spring in the slot of the plane engaging the shoe fornormally holding it so that it will project below the plane and in ahorizontal position.

In testimony whereof I atliX my signature, in the presence of twowitnesses.

OLAF O. SKRUKRUD.

iVit-nesses :V. N. GAYATT, A. M. Hanson.

floples of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

